Finding the Fourth Proportional to 145,163.97, 217,661.19 and 56,313.65
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Solution
The fourth proportional to 145,163.97, 217,661.19 and 56,313.65 is: 84,437.59
Step by Step Solution
- Step 1: Write the proportion equation
145,163.97 : 217,661.19 = 56,313.65 : x - Step 2: Convert to fraction form
145,163.97/217,661.19 = 56,313.65/x - Step 3: Cross multiply
145,163.97x = 217,661.19 × 56,313.65 - Step 4: Simplify right side
145,163.97x = 12,257,296,072.24 - Step 5: Solve for x
x = 12,257,296,072.24/145,163.97 - Step 6: Final answer
x = 84,437.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.